Caster for furniture



Feb. 19, 1924. 1,484,385

' A. C. CRIMMEL CASTER FOR FURNITURE Filed March 16. 1925 Patented Febl9, i924.

T ET E T ALVIE C. CRIMMEL, OF HARTFORD CITY, INDIANA.

CASTER ron rnnnrronn.

Application filed. March 16, 1923. Serial No. 625,432.

To all whomz't may concern:

' Be it known that I, ALVIE C. C IMMEL, a citizen of the United States,residing at Hartford City, county of Blackford, State of Indiana, haveinvented a new and useful Caster for Furniture, of which the followingis a specification.

My invention relates to a class of devices in the nature of casters orshoes for the feet of the legs of furniture, and more particularly tothat class of these devices which slide on the floor and in which apintle sleeve, or stem is for attachment inserted within the furnitureand with which pintle the shoe has a rocking or oscillatory connectionfor the purpose of preserving a flat contact of the shoe with the floorwhen the article of furniture is moved over uneven fioors orobstructions such as rugs or carpets.

The object of my invention is the construction of an efficient andinexpensive caster of the foregoing general character which is adaptedto beapplied to all kinds of furniture, and it comprehends a novelconstruction of a pintle carrying or slee've carrying bracket and asliding shoe connected therewith and capable of limited relativemovement with respect thereto.

With the foregoing and other objects in view my invention comprehends ingeneral a caster a typical embodiment of which is illustrated in theaccompanying drawings and hereinafter described, the particularsubject-matter which I claim as novel being definitely set forth in theclaiming clauses.

For the purpose of illustrating my invention, I have shown in theaccompanying drawings an embodiment of it which will be found inpractice to give satisfactory and reliable results. It is, however, tobe understood that the various instrumentalities of which my inventionconsists can be variously arranged and organized and that my inventionis not limited to the precise arrangement and organizatlon of theseinstrumentahtles as herein shown and described.

In the drawings, Figure 1 represents a front elevation, and Figure 2 aside elevation, of a caster embodying my improve ments.

Figure 3 represents a central, vertical, sectional elevation through thecaster as illustrated in Figure 1, with the pintle and J v theconnecting bolt in elevation.

Figure. 4: represents a plan, and Figure 5 a side elevation, of the shoeremoved from its carrying bracket.

Similar numerals of reference indicate corresponding parts.

Referring to the drawings: 1 designates the shoe proper, being preferably of glass, porcelain or similar material or composition, andpreferably also in the form of a solid disc or elliptical, body theunder surface of which is preferably flat but may be slightly concave orconvex.

2 designates a shoelug preferably integral of the shoe proper, andextending upwardly from the upper. surface of said shoe. This lug formsa part of the means of connection between the shoe and the leg or otherelement of the piece of furniture to which the shoe is applied.

The means of connection itself comprises the following elements :Apintle, shank or stem 8, preferably upwardly tapering and formed with acircumferential protuberance 4 which when the pintle is driven into alongitudinal recess or sheath in the piece a head 6 and preferably twoextended depending side plates 7, either integral with or attached tothe head, which lie alongsideof and loosely embrace the sides of theshoe lug 2,. and are adapted to be loosely I joined thereto by aconnecting bolt 8, headed or swaged, as at 9, or threaded andnutprovided, to retain it in place against the side plates of thecarrying bracket. It. will be apparent that the nut can be dispensedwith and the bolt screwed into one of the lugs of the bracket and thisis the way the positions with relation to th e bolt,- 'thebracket andthe pintle,. 2 iQdiQated by dotted lines, as seen in Figures 1, 2' and3:

-The c n e t o of h i l Wit th carrying bracket may, as stated, beintegral,' or by means of the flanged collar 12 near the lower end ofthe pintle and a swaged or rivet-like head 13 beneaththe top portion ofthe shoe lug 2. It may, however, be by some other form of connection orattachment.

The construction already described will make the operation of my casteras an entirety easily understood and its operation is simply that of adevice, the attachment of which to a piece of furniture can be varied bylimited oscillatory or rocking movement in practically all directionsand which involyes the planar disposition of the bearing surface of theshoe with reference to the pintle or sleeve and to the floor.

The construction as an entirety is in the nature of a ball joint and'while the pintle and bracket attachment remain fixed with reference tothe legs or other part of the piece of furniture with which the casteris v connected, the bearing surface of the shoe itself upon the floor iscapable of being inclined, so to speak, so that by the tilting of theshoe referably to its means of attachment, the piece of furniture towhich the caster is attached can be moved over irregular surfaces. g

The rocking movement of the carrying bracket with respect to the shoe ofthe caster is limited by the contact of the lower edges of; the sideplates 7 therewith, and another rocking movement in a direction at anangle to that already described ispermitted due to the differentialchamber of the aperture 10.

It will now be apparentthat I have devised anew and useful caster forfurniture which embodies the features of advantage enumerated asdesirable in the statement of the invention and the above description,and while I have, in the present instance, shown and described apreferred embodiment thereof which will give in practice satisfactoryand reliable results, it is to be understood that this embodiment issusceptible of modification various particulars without departing fromthe spirit or scope of the invention or sacrificing any of itsadvantages.

Having thus described my invention,

upwardly extending lug which the bracket laterally and loosely embracesand which. lug has through it a transverse'bolt aperture outwardlyflaring at each end, and a bolt connected with the carrying bracketandpassing through the aperture in the lug.

81A caster for furniture, which comprises a pintle, a carrying bracketto which the pintle is at its lower end connectedand which is fcrmedwith two side plates, a shoe proper formed with an upwardly-ex tendinglug which in the mounting of the parts passes between the side plates ofthe carrying bracket and is formed with a transverse aperture, and abolt which passes through said aperture and'is connected at its endswith the side plates of the'bracket.

i. A caster for furniture, which colliprises a pintle, a carryingbracket to which the pintle is at its lower end connected and which isformed with two side plates, a shoe proper formed with anupwardly-extending lug which in the mounting of the parts passes betweenth side plates of the carrying bracket and is formed with a transverseaperture outwardly flaring at each end, and a bolt which passes throughsaid flaring aperture is connected at its ends with'the side plates ofthe bracket and permits of a rocking movement of the bracket and thepintle with reference to the shoe.

5. A sliding shoe comprising a bottom member having a projected lugwhich lug is provided with flat side walls and having a pin receivingaperture extended therethrough, the longitudinal axis of which is atright angles to the vertical plane of said lugs side walls.

6. As an article ofmanufacture, a sliding shoe for a caster formed withan upwardly extending lug having therethrough a continuous, pinreceiving, transverse aperture the walls of which are tapered in opposedrelation to provide an outwardly flaring portion at each end of saidaperture.

7. A caster for furniture, comprising a pintle, a bracket havingdownwardly deflected plates, a shoe having an upwardly extending lugprovided with a transversely extending aperture which is of greaterdiameter at its ends than at its central portion and a fastening devicepassing through said plates and through said aperture, the lug and a pinpassing through said aperture 10 lower edges of said plates serving tolimit and connecting at each end to said forked the relative rockingmovement of said portion.

bracket and shoe in one direction. In testimony whereof, I have hereunto8. A device of the character stated com 7 signed my name this 13 day ofMarch, 1923.

prising a sliding shoe provided with an up ALVIE C. CRIMMEL.

wardly projected lug having an aperture In the presence of-- extendedtherethrough, a bracket having a E. F. WILLMAM,

forked portion arranged to straddle said Jorm DEE.

